78695240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151337}}^1$

素因数の和:151361

約数の個数: 32

約数和(自身を含む): 190685880

約数和(自身を除く): 111990640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 151337, 302674, 605348, 756685, 1210696, 1513370, 1967381, 3026740, 3934762, 6053480, 7869524, 9836905, 15739048, 19673810, 39347620, 78695240]

約数ペア:

[(1, 78695240), (2, 39347620), (4, 19673810), (5, 15739048), (8, 9836905), (10, 7869524), (13, 6053480), (20, 3934762), (26, 3026740), (40, 1967381), (52, 1513370), (65, 1210696), (104, 756685), (130, 605348), (260, 302674), (520, 151337)]